Engine Belts And Pulleys problems of the 2003 Jeep Laredo

I have purchased this 2003 Jeep grand cherokee Laredo in 2003 new from the supposedly 5 star place , "yeah right" at 1400 miles it began to tap in the engine , the first dealership has tried to rebuild the engine and it still tapped , took it to the dealership in another county it was fixed temporarily , they claim it was a piston ring/wristpin , was fixed again temporarily , it has gone through so many O2 sensors due to the fact the dealerships never put the heat shield back on , but the tap came back , I noticed that the crankshaft pulley was rotating with a wobble and had a tap coming from the engine again (for the third time)now I had to pay for a new tensioner pulley , a serpentine belt and some other stuff , in all it cost me $350. 00 out of my pocket cause they say some kind of warranty coverage , "whatever" the items I paid for failed due to the crankshaft being off balanced,now 3 weeks later the tap is back again , it gets so hot and I can smell the new belt burning hmmmmmm . From 2003 until now I have had so many incidents on a yearly basis , I do know alot of automotive mechanics for a girl , from rebuilding motors to swapping engines , and them ppl at Chrysler think im an idiot , something needs to get done , I have never thought I would buy a new vehicle and when it hit 1400 miles it would have an ongoing problem for years ahead,now since I cant claim the lemon law act cause it is only for vehicles of 2004 on up , I believe I will be searching for an attorney after I contact the attorney general and see how his office would like to go about this problem , it was a $500. 00 monthly payment , I think I would spend that money on a lawyers retainer and make them be responsible for their own problems I have to go through. . . This is an accident waiting to happen , if you can prevent it from happening why not,I will never deal with this corp. Again , ever.